"Source: Text/Geometry/ModAbVar.text";
"Line: 2112";
"Date: Fri Sep  9 15:10:23 2022";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Geometry/ModAbVar.text, line: 2112
// Example: H145E38 ()
print "Example: H145E38";
ei := GetEchoInput();
SetEchoInput(true);
A := ZeroModularAbelianVariety(); A;
J := JZero(22); J;
A subset J;
assert $1;
J4 := JZero(22,4); J4;
IsOnlyMotivic(J4);
assert $1;
JOne(22); 
Jplus := JZero(22,2,+1); Jplus;
Sign(Jplus);
assert $1 eq 1;
Sign(JZero(22));
assert $1 eq 0;
SetEchoInput(ei);
